CN209919032U - Tapping tool - Google Patents

Tapping tool Download PDF

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Publication number
CN209919032U
CN209919032U CN201920736100.9U CN201920736100U CN209919032U CN 209919032 U CN209919032 U CN 209919032U CN 201920736100 U CN201920736100 U CN 201920736100U CN 209919032 U CN209919032 U CN 209919032U
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CN
China
Prior art keywords
sliding seat
sleeve
hole
screw tap
rotating disc
Prior art date
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Active
Application number
CN201920736100.9U
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Chinese (zh)
Inventor
张军工
陈建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningxia Yinxing Wuzhong Instrument Fluid Control Co Ltd
Original Assignee
Ningxia Yinxing Wuzhong Instrument Fluid Control Co Ltd
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Application filed by Ningxia Yinxing Wuzhong Instrument Fluid Control Co Ltd filed Critical Ningxia Yinxing Wuzhong Instrument Fluid Control Co Ltd
Priority to CN201920736100.9U priority Critical patent/CN209919032U/en
Application granted granted Critical
Publication of CN209919032U publication Critical patent/CN209919032U/en
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Abstract

A tapping tool comprises a cylindrical sleeve, wherein two or more spiral grooves with the same spiral direction are machined in the outer wall of the cylindrical sleeve, the rear portion of a sliding seat is a cylinder matched with an inner hole of the sleeve, positioning columns with the same number as the spiral grooves are arranged on the outer wall of the rear portion of the sliding seat and located on the same circumference, a plurality of square holes are formed in the side wall of a rotating disc and used for inserting the tail portion of a screw tap, threaded holes vertically penetrating through the square holes are formed in the bottom surface of the rotating disc, and positioning holes with the same number as the square holes are formed in the bottom surface of the rotating disc; the front part of the sliding seat is provided with a hole, and the front part of the sliding seat is pivoted with the rotating disc so that each square hole can rotate to a processing station. The utility model reduces the vibration of the screw tap and improves the tapping precision by rotating the workpiece and keeping the screw tap static; through setting up a plurality of square holes at the rolling disc, can install the screw tap of different specifications fast, improve production efficiency, effectively reduced the disconnected phenomenon in top of screw tap through setting up the helicla flute.

Description

Tapping tool
The technical field is as follows:
the utility model relates to a machining's frock, in particular to tapping frock.
Background art:
the screw thread is a common connection structure of parts, is one of important modes for connecting the parts in machine equipment, and is also used for rotating occasions with low requirements in life. On the surface of the cylinder or the cone, continuous projections having a prescribed tooth shape are formed along a spiral line. The protrusion is a solid part between adjacent side surfaces of the thread and is divided into a common thread, a trapezoidal thread, a sawtooth thread British thread and the like. The device is also divided into an external thread and an internal thread; the external screw thread limitation influences little, and tiny internal thread is just different, and it is processing the screw thread on the bottom hole that bores in advance, has certain limitation, and the cutter is tiny, and easy quivering when the screw tap rotates the tapping, especially when tapping the blind hole, attacks the hole bottom after, the screw tap pushes up absolutely very easily, needs frequent change. In addition, the screw tap is inconvenient to replace for processing various different inner hole threads at present.
The utility model has the following contents:
in view of this, it is necessary to design a tapping tool, which has stable machining thread, a tap that is not easy to break and is convenient to replace.
The utility model provides a tapping frock, includes: the device comprises a sleeve, a sliding seat, a rotating disc and a screw tap; the sleeve is cylindrical, two or more spiral grooves with the same spiral direction are processed on the outer wall of the sleeve, the central axis surrounded by the spiral grooves is superposed with the central axis of the sleeve, and the spiral grooves are symmetrically distributed on the outer wall of the sleeve along the circumference of the central axis of the sleeve; the rear part of the sliding seat is a cylinder matched with an inner hole of the sleeve, the rear part of the sliding seat is inserted into the sleeve, positioning columns with the same number as the spiral grooves are arranged on the outer wall of the rear part of the sliding seat and on the same circumference, the outer ends of the positioning columns are positioned in the spiral grooves, and the diameters of the outer ends of the positioning columns are matched with the width of the spiral grooves; the side wall of the rotating disc is provided with three or more square holes, the square holes are used for inserting square parts of the tail part of the screw tap, the bottom surface of the rotating disc is provided with threaded holes which vertically penetrate through the square holes and are used for fastening through screws after the screw tap is inserted, and the bottom surface of the rotating disc is also provided with positioning holes with the same number as the square holes; the front part of the sliding seat is provided with a hole, the front part of the sliding seat is pivoted with the rotating disc to enable each square hole to rotate to a processing station, and the processing station is as follows: and after the positioning pin penetrates through the hole and is inserted into the positioning hole, one screw tap axis which is arranged in the square hole is superposed with the central axis of the sleeve.
Fix suitable screw tap on the processing station of tapping frock during the use, fix the tapping frock on lathe tool post, the work piece that will beat the bottom hole is fixed on the chuck of lathe spindle, and reference column initial position sets up in the one end of keeping away from the screw tap, removes the knife rest and makes the screw tap contact the work piece bottom hole, rotates the chuck and begins the tapping, and chuck pivoted direction is: the sliding seat is driven to extend out along the spiral groove in a rotating way. When tapping reaches the bottom of the hole, the screw tap can not feed forward any more, so the screw tap is driven by a workpiece to rotate along the spiral groove to the other end to play a buffering role, the screw tap is prevented from being broken, an operator is reminded to stop rotating forwards in the process, and the workpiece rotates backwards and retreats the cutter.
Preferably, still include the tailcone, the great one end of tailcone is fixed with the sleeve afterbody, and tailcone and lathe tailstock taper fit insert the lathe tailstock through the tailcone of tapping frock during the use and fix.
Preferably, the front section of the sliding seat is U-shaped, and the rotating disc is pivoted at the middle part of the U-shaped.
Preferably, the number of the spiral grooves is two or three.
Preferably, the number of the square holes is 3-6.
Preferably, a second hole is formed at the position of the positioning column at the rear part of the sliding seat, and the positioning column is inserted into the second hole and fixed with the rear part of the sliding seat.
The utility model reduces the vibration of the screw tap and improves the tapping precision by rotating the workpiece and keeping the screw tap static; through setting up a plurality of square holes at the rolling disc, can install the screw tap of different specifications fast, improve production efficiency, effectively reduced the disconnected phenomenon in top of screw tap through setting up the helicla flute.
Description of the drawings:
fig. 1 is a front view structural diagram of a tapping tool according to a preferred embodiment.
Fig. 2 is a schematic perspective view of a tapping tool of a preferred embodiment mounted on a tailstock of a machine tool.
In the figure: the device comprises a sleeve 1, a sliding seat 2, a rotating disc 3, a screw tap 4, a spiral groove 11, a sliding seat rear part 21, a positioning column 23, a square hole 31, a threaded hole 32, a positioning hole 33, a positioning pin 34, a workpiece 8, a chuck 9, a tail cone 5 and a machine tool tail seat 7.
The specific implementation mode is as follows:
as shown in FIGS. 1-2, a tapping tool comprises: the device comprises a sleeve 1, a sliding seat 2, a rotating disc 3 and a screw tap 4; the sleeve 1 is cylindrical, two or more spiral grooves 11 with the same spiral direction are processed on the outer wall of the sleeve 1, the central axis surrounded by the spiral grooves 11 is superposed with the central axis of the sleeve 1, and the spiral grooves 11 are symmetrically distributed on the outer wall of the sleeve along the circumference of the central axis of the sleeve 1; the rear part 21 of the sliding seat is a cylinder matched with an inner hole of the sleeve 1, the rear part 21 of the sliding seat is inserted into the sleeve 1, positioning columns 23 with the same number as the spiral grooves 11 are arranged on the outer wall of the rear part 21 of the sliding seat and positioned on the same circumference, the outer ends of the positioning columns 23 are positioned in the spiral grooves 11, and the diameter of the outer ends of the positioning columns 23 is matched with the groove width of the spiral grooves 11; the side wall of the rotating disc 3 is provided with three or more than three square holes 31, the square holes 31 are used for inserting the square parts of the tail parts of the screw taps 4, the bottom surface of the rotating disc 3 is provided with threaded holes 32 which vertically penetrate through the square holes 31, the threaded holes 32 are used for fastening the screw taps 4 after being inserted, and the bottom surface of the rotating disc 3 is also provided with positioning holes 33 with the same number as the square holes 31; the sliding seat front portion 22 is provided with a hole, the sliding seat front portion 22 is pivoted with the rotating disc 3 to enable each square hole 31 to rotate to a processing station, and the processing station is as follows: after the positioning pin 34 passes through the hole and is inserted into the positioning hole 33, the axis of one tap 4 which is inserted into the square hole 31 coincides with the central axis of the sleeve 1.
Fix suitable screw tap 4 on the processing station of tapping frock during the use, fix the tapping frock on lathe saddle, the work piece 8 that will make the bottom outlet is fixed on lathe spindle's chuck 9, reference column 23 initial position sets up in the one end of keeping away from screw tap 4, removes the knife rest and makes screw tap 4 contact 8 bottom outlets of work piece, rotates chuck 9 and begins the tapping, and chuck 9 pivoted direction is: has a direction of driving the sliding seat 2 to extend along the spiral groove 11. When tapping reaches the bottom of the hole, the screw tap 4 can not feed forward any more, so the screw tap is driven by the workpiece 8 to rotate along the spiral groove 11 to the other end to play a role in buffering, the screw tap 4 is prevented from being broken, an operator is reminded to stop rotating forwards in the process, and the workpiece 8 is enabled to rotate backwards and backwards.
In this embodiment, still include tail cone 5, the great one end of tail cone 5 is fixed with sleeve 1 afterbody, and tail cone 5 and 7 taper fit of lathe tailstock are fixed through inserting the tail cone 5 of tapping frock during the use. The front part 22 of the sliding seat is U-shaped in cross section, and the rotating disc 3 is pivoted in the middle of the U-shaped. The number of the spiral grooves 11 is two or three. The number of the square holes 31 is 3-6. The location of the location column at the rear part 21 of the sliding seat is provided with a second hole, and the location column 23 is inserted into the second hole and fixed with the rear part 21 of the sliding seat.

Claims (6)

1. The utility model provides a tapping frock which characterized in that includes: the device comprises a sleeve, a sliding seat, a rotating disc and a screw tap; the sleeve is cylindrical, two or more spiral grooves with the same spiral direction are processed on the outer wall of the sleeve, the central axis surrounded by the spiral grooves is superposed with the central axis of the sleeve, and the spiral grooves are symmetrically distributed on the outer wall of the sleeve along the circumference of the central axis of the sleeve; the rear part of the sliding seat is a cylinder matched with an inner hole of the sleeve, the rear part of the sliding seat is inserted into the sleeve, positioning columns with the same number as the spiral grooves are arranged on the outer wall of the rear part of the sliding seat and on the same circumference, the outer ends of the positioning columns are positioned in the spiral grooves, and the diameters of the outer ends of the positioning columns are matched with the width of the spiral grooves; the side wall of the rotating disc is provided with three or more than three square holes, the square holes are used for inserting square parts of the tail of the screw tap, the bottom surface of the rotating disc is provided with threaded holes which vertically penetrate through the square holes and are used for fastening through screws after the screw tap is inserted, and the bottom surface of the rotating disc is also provided with positioning holes with the same number as the square holes; the front part of the sliding seat is provided with a hole, the front part of the sliding seat is pivoted with the rotating disc to enable each square hole to rotate to a processing station, and the processing station is as follows: and after the positioning pin penetrates through the hole and is inserted into the positioning hole, one screw tap axis which is arranged in the square hole is superposed with the central axis of the sleeve.
2. The tapping tool of claim 1, further comprising a tail cone, wherein the larger end of the tail cone is fixed to the tail of the sleeve, and the tail cone is in taper fit with a tailstock of a machine tool.
3. A tapping tool as claimed in claim 1 or 2 wherein the front of the sliding seat is "u" -shaped in cross-section and the rotatable disk is pivotally connected to a central recess in the rotatable disk.
4. The tapping tool according to claim 1 or 2, wherein the number of the spiral grooves is two or three.
5. The tapping tool according to claim 1 or 2, wherein the number of the square holes is 3-6.
6. The tapping tool as claimed in claim 1 or 2, wherein the positioning post is provided with a second hole at the rear portion of the sliding seat, and the positioning post is inserted into the second hole and fixed to the rear portion of the sliding seat.
CN201920736100.9U 2019-05-22 2019-05-22 Tapping tool Active CN209919032U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920736100.9U CN209919032U (en) 2019-05-22 2019-05-22 Tapping tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920736100.9U CN209919032U (en) 2019-05-22 2019-05-22 Tapping tool

Publications (1)

Publication Number Publication Date
CN209919032U true CN209919032U (en) 2020-01-10

Family

ID=69091487

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920736100.9U Active CN209919032U (en) 2019-05-22 2019-05-22 Tapping tool

Country Status (1)

Country Link
CN (1) CN209919032U (en)

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